<!-- 部门树 -->
<template>
	<el-card shadow="never">
		<el-input v-model="deptName" placeholder="部门名称" clearable>
			<template #prefix>
				<i-ep-search />
			</template>
		</el-input>

		<el-tree
			ref="deptTreeRef"
			class="mt-2"
			:data="deptList"
			:props="{ children: 'children', label: 'label', disabled: '' }"
			:expand-on-click-node="false"
			:filter-node-method="handleFilter"
			default-expand-all
			@node-click="handleNodeClick"
		/>
	</el-card>
</template>

<script setup lang="ts">
import DeptAPI from '@/api/dept'
const props = defineProps({
	modelValue: {
		type: [Number],
		default: undefined
	}
})

const deptList = ref<OptionType[]>() // 部门列表
const deptTreeRef = ref(ElTree) // 部门树
const deptName = ref() // 部门名称

const emits = defineEmits(['node-click'])

const deptId = useVModel(props, 'modelValue', emits)

watchEffect(
	() => {
		deptTreeRef.value.filter(deptName.value)
	},
	{
		flush: 'post' // watchEffect会在DOM挂载或者更新之前就会触发，此属性控制在DOM元素更新后运行
	}
)

/** 部门筛选 */
function handleFilter(value: string, data: any) {
	if (!value) {
		return true
	}
	return data.label.indexOf(value) !== -1
}

/** 部门树节点 Click */
function handleNodeClick(data: { [key: string]: any }) {
	deptId.value = data.value
	emits('node-click')
}

onBeforeMount(() => {
	DeptAPI.getOptions().then(data => {
		deptList.value = data
	})
})
</script>
